For many in our country, acting in a polite and civil manner, after being protracted for years of military rule is something to learn. Many are yet to learn the importance of the words please,excuse me and thank you in their communication with others. They are of the erroneous belief that being polite is a sign of weakness in one's character, but that's not true. Rather, being polite is something that reveals the strength of character.
In James 3:13-14, the bible says," who is a wise man and endued with knowledge among you? let him shew out o a good conversation his works with meekness of wisdom. But if ye have bitter envying and strife in your hearts, glory not and lie not against the truth". In essence, when you use the right word to address others, you're actually displaying the wisdom of God that's in you. But bitterness in the heart of man will produce harsh words and abusive communication.
So, in relating with those around you, don't use bitter, harsh or abusive words. Let your words reflect the presence of the spirit of God that lives in you. Collossians 4:6 says,"Be gracious in your speech. The goal is to bring out the best in others in a conservation, not put them down or cut them out"(MSG). Let your words uplift, encourage, inspire, soothe and build. Don't allow communication that could inflict pain or stir strife or discord out of your lips.
See others with the eyes of God and address them that way. Be humble in your communication (james 4:6). Don't use hurtful words to address people and don't raise your voice against them. Be courteous, be respectful, and civil in your relationship with others.